<title>Modeling of multiwatt cw diode-pumped double-cladded fiber lasers for medical applications</title>

Efficient operation of diode-pumped single-frequency thulium-doped fiber lasers near 2 μm

Optics Letters ◽

10.1364/ol.32.000355 ◽

2007 ◽

Vol 32 (4) ◽

pp. 355 ◽

Cited By ~ 72

Author(s):

Jihong Geng ◽

Jianfeng Wu ◽

Shibin Jiang ◽

Jirong Yu

Keyword(s):

Fiber Lasers ◽

Single Frequency ◽

Efficient Operation ◽

Diode Pumped

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Potential of super pulse diode and fiber lasers for treatment of soft and hard tissues in medical applications

International Congress on Applications of Lasers & Electro-Optics ◽

10.2351/1.5138172 ◽

2017 ◽

Author(s):

Ilya Yaroslavsky ◽

Victoria Vinnichenko ◽

Alexander Vybornov ◽

Igor Perchuk ◽

Gregory Altshuler ◽

...

Keyword(s):

Fiber Lasers ◽

Medical Applications ◽

Hard Tissues

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Mitigation of stimulated Raman scattering in kilowatt-level diode-pumped fiber amplifiers with chirped and tilted fiber Bragg gratings

High Power Laser Science and Engineering ◽

10.1017/hpl.2019.1 ◽

2019 ◽

Vol 7 ◽

Cited By ~ 4

Author(s):

Meng Wang ◽

Le Liu ◽

Zefeng Wang ◽

Xiaoming Xi ◽

Xiaojun Xu

Keyword(s):

Raman Scattering ◽

Fiber Lasers ◽

Stimulated Raman Scattering ◽

Beam Quality ◽

Average Power ◽

Fiber Amplifiers ◽

Maximum Output ◽

Power Scaling ◽

Diode Pumped ◽

Stimulated Raman

The average power of diode-pumped fiber lasers has been developed deeply into the kW regime in the past years. However, stimulated Raman scattering (SRS) is still a major factor limiting the further power scaling. Here, we have demonstrated the mitigation of SRS in kilowatt-level diode-pumped fiber amplifiers using a chirped and tilted fiber Bragg grating (CTFBG) for the first time. The CTFBG is designed and inscribed in large-mode-area (LMA) fibers, matching with the operating wavelength of the fiber amplifier. With the CTFBG inserted between the seed laser and the amplifier stage, an SRS suppression ratio of ${\sim}10~\text{dB}$ is achieved in spectrum at the maximum output laser power of 2.35 kW, and there is no reduction in laser slope efficiency and degradation in beam quality. This work proves the feasibility and practicability of CTFBGs for SRS suppression in high-power fiber lasers, which is very useful for the further power scaling.

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